Add all four tyres
Tap each wheel and enter the size, construction, tread pattern, load index and tread depth shown on that tyre.
Free WOF tool
WOF Axle Checker
Check a four-tyre setup against the New Zealand WOF axle-matching rules.
Free to useNo account needed
First time checking an axle?See what to enter for each tyre, what is compared, and what the result can and cannot confirm.
This checker tests the written matching rules. It cannot inspect damage, perishing, repairs or cord exposure. Confirm the final result with a qualified WOF inspector.
Help & guide
Check all four tyres axle by axle.
The checker compares the details that must match or meet the written WOF rules.
Check front and rear separately
The front pair and rear pair are assessed as axles. A tyre can be acceptable on one axle and unsuitable on the other.
Read the reason beside the result
A mismatch names the field that needs attention so you can correct the exact tyre entry or fitted combination.
Know the limit
The result covers entered matching rules. It does not inspect damage, repairs, age, pressure or the rest of a WOF inspection.